Does anyone have experience in N2 supply source for reflow oven (1000scfh) other than N2 generator? Tanks, liquid, etc. We are in the developement stages of lead free processing and would like a quick, short term solution for providing N2 to a Conceptronics HVN102 reflow oven. As economically as possible of course.

ken, in order to improve the wettability I suppose.... But it seems that jimk wants N2 for the reflow owen even if he does not need N2... ==== jimk: see air-liquide, linde gaz, and praxair , you can by N2 liquid in tank , or any other conditionnement for tour courses. (google search : air liquide and so on.....)

Jimk: My company is a major global manufacturer and supplier of liquid nitrogen. We also provide technical support for electronics applications and aid users in equipping/retrofitting their soldering equipment for nitrogen use.

What general state/province/country are you in? Personally, I am located in the U.S. If you wish to have someone contact you, I can put in touch or give you the general phone number of our company.

The use of nitrogen in lead free wave solder operations is primarily used to reduce or even eliminate drossing of the solder, thus improving solder yield. The higher priced lead free solder makeup (Cu, Ag) make this a more economical proces than the old leaded solder systems. Nitrogen, on finicky to join parts, can "open up the process window" making any other variations in the process more forgivable. If excess drossing of lead free solder is not a concern and if parts are being soldered to quality specs, then nitrogen may not be necessary.